Joint ICTP/SISSA SP Seminar 25 Jan. at 14:00 at SISSA: Jia-Ju Zhang

[CM Section]

Joint ICTP/SISSA Statistical Physics Seminar

Kindly note unusual change of DAY and TIME

Thursday 25 January at 2:00 p.m.
SISSA, Via Bonomea 265, Room 138
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Speaker: Jia-Ju Zhang (University of Milano Bicocca)

Title: Eigenstate thermalization hypothesis in two-dimensional large 
central charge CFT

Abstract: By the eigenstate thermalization hypothesis (ETH), a highly 
excited energy
eigenstate behaves like a thermal state. It is related to the black hole 
information paradox
by the AdS/CFT correspondence. I will talk about ETH in two-dimensional 
large central
charge CFT and compare the excited state of a primary operator with the 
thermal state.
To define ETH precisely, one needs to know how similar, or equivalently 
dissimilar, the
excited state and thermal state are. I will talk about short interval 
expansions of the
entanglement entropy, relative entropy, Jensen-Shannon divergence. For 
the canonical
ensemble, the excited state and thermal state are the same at the 
leading order of large
central charge and are different at the next-to-leading order. I will 
also discuss briefly ETH
for generalized Gibbs ensemble, and ETH for the descendant excited states.